查看文章

Biological invasions have become a major cause of biodiversity loss. Tracing the origin of the populations of alien species is essential to infer the dispersal pathway and finally to set conservation policies aimed at preventing new introductions. The Italian wall lizard, Podarcis sicula, is one of the reptile species most widely introduced, with allochthonous populations occurring from the United States to Turkey. For some of them, instances of geographic expansion and competition/hybridization with autochthonous Podarcis sp. have been indicated. In the Iberian Peninsula, five introduced populations are known: Lisbon (W Portugal), Noja, Cantabria (N Spain), La Rioja (N Spain) and Almería (S Spain) and Sant Celoni, Barcelona (NE Spain) while the species now widely ranges Menorca Island in the Balearics. Here we assess the origin of four populations (Barcelona population will not be included) by comparing in a …